Cation Exchange in Lead Halide Perovskite Quantum Dots toward Functional Optoelectronic Applications

Zhao, Chenyu1; Shi, Junwei1,2; Huang, Hehe1; Zhao, Qian3; Zhang, Xuliang1,4; Yuan, Jianyu1,5

2023-11-01

10.1002/smsc.202300132

SMALL SCIENCE   影响因子和分区

2688-4046

["Lead halide perovskite quantum dots (PQDs) exhibit properties tunability and solution processability, rending them highly promising for optoelectronic applications. To overcome the compositional limits of thin-film perovskite and achieve mixed A-site PQDs, a post-synthetic cation-exchange process, driven by the intrinsic ionic character as well as the dynamic surface structure within the PQDs, emerges as a highly efficient approach. The cation-exchange process can be precisely regulated by manipulating PQD-situated environment, such as the cation species, stoichiometric ratios, and surface ligand conditions, leading to tunable optical bandgap, improved stability, and enhanced carrier lifetime over the single A-site PQDs. These advancements hold immense potential for elevating the performance of PQD-based optoelectronic devices. In this perspective, a timely summary and outlook on the emergence and developments of cation exchange in functional PQDs is presented, as well as the intrinsic cation-exchange mechanism and properties of these resultant-mixed-cation PQDs. It is believed that these detailed discussions are beneficial for advancing further development of cation exchange and utilization of mixed-cation PQDs toward functional optoelectronic applications.","Post cation exchange, driven by intrinsic ionic properties and surface dynamics, allows efficient synthesis of mixed A-site perovskite quantum dots (PQDs), and such a process can further optimize their optoelectronic properties and related device performance. This perspective summarizes the recent progress, delves into mechanisms, and explores mixed-cation PQDs applications, offering insights for future development.image (c) 2023 WILEY-VCH GmbH"]

cation exchanges optoelectronic applications perovskite quantum dots solar cells stabilities

ESCI

英语

其他

National Key Research and Development Program of China[2019YFE0108600] ; National Natural Science Foundation of China["52261145696","52073198","52102266"] ; Natural Science Foundation of Jiangsu Province[BK20211598] ; Jiangsu Funding Program for Excellent Postdoctoral Talent[2023ZB405] ; Science and Technology Program of Suzhou[SYG202037]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001116525800001

WILEY

Web of Science

1.Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, 199 Ren Ai Rd,Suzhou Ind Pk, Suzhou 215123, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Nankai Univ, Sch Mat Sci & Engn, Tianjin 300350, Peoples R China
4.Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China
5.Soochow Univ, Jiangsu Key Lab Adv Negat Carbon Technol, Suzhou 215123, Jiangsu, Peoples R China

Zhao, Chenyu,Shi, Junwei,Huang, Hehe,et al. Cation Exchange in Lead Halide Perovskite Quantum Dots toward Functional Optoelectronic Applications[J]. SMALL SCIENCE,2023.

Zhao, Chenyu,Shi, Junwei,Huang, Hehe,Zhao, Qian,Zhang, Xuliang,&Yuan, Jianyu.(2023).Cation Exchange in Lead Halide Perovskite Quantum Dots toward Functional Optoelectronic Applications.SMALL SCIENCE.

Zhao, Chenyu,et al."Cation Exchange in Lead Halide Perovskite Quantum Dots toward Functional Optoelectronic Applications".SMALL SCIENCE (2023).